Seattle April 18 Weather Records

Daily averages and all-time records for weather in Seattle, Washington for the date of April 18.
April 18 All-Time Records
1894–2024
Highest temperature 89 °F 2016
Lowest temperature 34 °F 1964
Lowest daily high 45 °F 1967
Highest daily low 54 °F 2016
Most precipitation 0.69 inches 1911
Most snow none -
April 18 Average Weather
1991–2020 1
Average high 58.9 °F
Average low 43.3 °F
Chance precipitation 50.2%
Chance snow 0%
Seattle April 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2024 64 39 0.00 0.0
2023 48 38 0.12 0.0
2022 52 41 0.23 0.0
2021 79 50 0.00 0.0
2020 57 48 0.05 0.0
2019 62 53 0.13 0.0
2018 60 41 0.00 0.0
2017 60 48 0.48 0.0
2016 89 54 0.00 0.0
2015 66 47 0.00 0.0
2014 58 42 0.00 0.0
2013 53 44 0.21 0.0
2012 56 45 0.07 0.0
2011 51 36 0.01 0.0
2010 70 46 0.00 0.0
2009 58 38 0.00 0.0
2008 49 37 0.00 n/a
2007 55 41 0.01 n/a
2006 59 37 0.00 n/a
2005 57 43 0.01 n/a
2004 56 45 0.04 n/a
2003 55 41 0.00 n/a
2002 57 40 0.00 n/a
2001 57 43 0.10 n/a
2000 63 43 0.00 n/a
1999 59 45 0.00 n/a
1998 58 44 0.00 n/a
1997 53 44 0.01 n/a
1996 51 42 0.13 0.0
1995 54 41 0.03 0.0
1994 71 49 0.00 0.0
1993 58 43 0.04 0.0
1992 62 44 0.00 0.0
1991 64 43 0.00 0.0
1990 59 46 0.00 0.0
1989 67 44 0.00 0.0
1988 61 39 0.00 0.0
1987 53 37 0.00 0.0
1986 53 42 0.00 0.0
1985 53 39 0.02 0.0
1984 59 44 0.15 0.0
1983 69 48 0.00 0.0
1982 51 36 0.00 0.0
1981 64 42 0.00 0.0
1980 63 51 0.04 0.0
1979 55 40 0.00 0.0
1978 59 45 0.26 0.0
1977 55 42 0.00 0.0
1976 47 36 0.04 0.0
1975 55 45 0.04 0.0
1974 58 44 0.00 0.0
1973 46 38 0.38 0.0
1972 52 37 0.00 0.0
1971 54 43 0.00 0.0
1970 47 41 0.40 0.0
1969 53 41 0.12 0.0
1968 49 39 0.30 0.0
1967 45 40 0.35 0.0
1966 60 36 0.00 0.0
1965 55 42 0.06 0.0
1964 58 34 0.00 0.0
1963 51 43 0.06 0.0
1962 77 42 0.00 0.0
1961 47 34 0.00 0.0
1960 52 40 0.30 0.0
1959 55 42 0.00 0.0
1958 51 41 0.03 0.0
1957 54 45 0.11 0.0
1956 67 38 0.00 0.0
1955 53 36 0.00 0.0
1954 50 40 0.00 0.0
1953 62 38 0.00 0.0
1952 69 42 0.00 0.0
1951 54 44 0.04 0.0
1950 61 34 0.00 0.0
1949 53 45 0.00 0.0
1948 58 41 0.00 0.0
1947 58 51 0.01 0.0
1946 58 47 0.07 0.0
1945 60 46 0.01 0.0
1944 57 41 0.01 0.0
1943 63 50 0.14 0.0
1942 63 47 0.00 0.0
1941 67 40 0.00 0.0
1940 63 48 0.01 0.0
1939 69 50 0.00 0.0
1938 59 46 0.01 0.0
1937 54 43 0.04 0.0
1936 66 53 0.00 0.0
1935 61 42 0.05 0.0
1934 80 48 0.00 0.0
1933 55 45 0.00 0.0
1932 52 46 0.29 0.0
1931 52 39 0.03 0.0
1930 60 45 0.00 0.0
1929 63 40 0.00 0.0
1928 49 40 0.00 0.0
1927 48 34 0.02 0.0
1926 58 47 0.28 0.0
1925 47 41 0.40 0.0
1924 48 41 0.14 0.0
1923 52 42 0.18 0.0
1922 55 40 0.00 0.0
1921 55 46 0.00 0.0
1920 58 40 0.00 0.0
1919 56 46 0.36 0.0
1918 62 40 0.00 0.0
1917 52 42 0.00 0.0
1916 46 38 0.15 0.0
1915 66 46 0.00 0.0
1914 64 48 0.04 0.0
1913 63 46 0.07 0.0
1912 51 39 0.08 0.0
1911 50 38 0.69 0.0
1910 74 45 0.00 0.0
1909 53 36 0.00 0.0
1908 56 49 0.04 0.0
1907 54 42 0.01 0.0
1906 63 45 0.00 0.0
1905 61 51 0.00 0.0
1904 59 49 0.58 0.0
1903 51 42 0.06 0.0
1902 61 49 0.36 0.0
1901 57 43 0.00 0.0
1900 57 46 0.00 0.0
1899 52 43 0.12 0.0
1898 57 39 0.03 0.0
1897 69 49 0.00 0.0
1896 55 40 0.08 0.0
1895 53 44 0.02 0.0
1894 54 42 0.00 0.0
What's the all-time high for Seattle on 4/18?
For the date of Apr 18, the highest temperature ever reached in Seattle history is 89 °F which happened in 2016.
Highest Temperatures in Seattle on April 18
Rank Temperature Year
1 89 °F 2016
2 80 °F 1934
3 79 °F 2021
4 77 °F 1962
5 74 °F 1910
6 71 °F 1994
7 70 °F 2010
8 69 °F 1983
8 69 °F 1952
8 69 °F 1897
8 69 °F 1939
What's the all-time low for Seattle on 4/18?
For the date of Apr 18, the lowest temperature ever reached in Seattle history is 34 °F which has happened 4 times, most recently in 1964.
Lowest Temperatures in Seattle on April 18
Rank Temperature Year
1 34 °F 1961
1 34 °F 1964
1 34 °F 1927
1 34 °F 1950
5 36 °F 1982
5 36 °F 1966
5 36 °F 1909
5 36 °F 1976
5 36 °F 1955
5 36 °F 2011
Lowest High Temperatures in Seattle on April 18
Rank Temperature Year
1 45 °F 1967
2 46 °F 1973
2 46 °F 1916
4 47 °F 1961
4 47 °F 1925
4 47 °F 1970
4 47 °F 1976
8 48 °F 1927
8 48 °F 1924
8 48 °F 2023
What's the most it has ever rained in Seattle on 4/18?
For the date of Apr 18, the most precipitation ever recorded in Seattle history is 0.69 inches which happened in 1911.
All-Time Most Precipitation in Seattle on April 18
Rank Precipitation Year
1 0.69 inches 1911
2 0.58 inches 1904
3 0.48 inches 2017
4 0.40 inches 1970
4 0.40 inches 1925
6 0.38 inches 1973
7 0.36 inches 1919
7 0.36 inches 1902
9 0.35 inches 1967
10 0.30 inches 1960
10 0.30 inches 1968
Weather Station Details
Years Station Coordinates
1948–2024 Seattle Tacoma International Airport location
1894–1947 University of Washington location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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